Management of Corky Ringspot Disease in Potato Using Vydate C-LV Irrigated Trial Rice, MN 2009
|
|
- Eustacia Austin
- 5 years ago
- Views:
Transcription
1 Management of Corky Ringspot Disease in Potato Using Vydate C-LV Irrigated Trial Rice, MN 2009 Dr. Nick David Potato Agronomist, NDSU/UM Dr. Neil Gudmestad Plant Pathologist, NDSU
2 Management of Corky Ringspot Disease Using Oxamyl (Vydate C-LV) Principal Investigators Nick David Extension Potato Agronomist, North Dakota State University/University of Minnesota Neil Gudmestad Plant Pathologist, North Dakota State University Marty Glynn Food Technologist and Potato Worksite Manager, USDA-ARS Summary Five oxamyl (Vydate C-LV) programs were evaluated on six different potato varieties near Rice, MN during 2009 to determine if combinations of oxamyl applied in-furrow at planting, at crop emergence, three weeks after crop emergence, and six weeks after crop emergence could effectively reduce incidence and severity of Corky Ringspot (CRS). All oxamyl programs reduced the incidence and severity of CRS in all varieties tested compared to the non-treated control, but only those programs with an infurrow at-planting treatment resulted in commercially acceptable levels of CRS. During 2009, nontreated plots had 33% severe damage from CRS. Waiting until crop emergence (44 days after planting) to begin oxamyl treatments reduced the percentage of severe damage to 19%, but was still unacceptable. However, when treatments began at planting, severe damage was reduced to commercially acceptable levels of 1% or less. There was no difference in incidence or severity of CRS between any of the oxamyl programs that included an in-furrow application. In-furrow applications of oxamyl did not reduce the final crop emergence in any of the varieties tested, but further work to evaluate the effect of oxamyl on tubers per hill, total yield, and process quality are warranted. Introduction: Corky Ringspot (CRS) is a disease of potato caused by Tobacco Rattle Virus (TRV) and is vectored by stubby-root nematodes. CRS symptoms can vary between varieties, but necrotic rings or spots in the tuber tissue are common (Figure 1). Damage by CRS is scored as an internal defect and can significantly reduce usable yield or lead to crop rejection if not managed properly. While this disease has been known to occur in many areas of the United States, it has only recently been reported in Minnesota (Gudmestad et al., 2008) and North Dakota (David et al., 2009). Previous work in Oregon, Washington, and Colorado has shown that the fumigant 1,3-dichloropropene (Telone II) can effectively control CRS, but may be cost prohibitive in Minnesota and North Dakota. Recent studies in Oregon (Charlton et al., 2010) report that the nematicide, oxamyl (Vydate C-LV), can reduce the incidence of CRS in potato when chemigated through the irrigation system. The current study was initiated to determine if low-volume (10 gpa or less) applications of oxamyl (Table 1) could reduce CRS symptoms in Russet Burbank, Russet Norkotah, Umatilla Russet, Dakota Pearl, Red Norland, and Yukon Gold at harvest and following four months storage.
3 Figure 1. Corky Ringspot Symptoms on Russet Burbank Figure 2. Corky Ringspot Symptoms on Dakota Pearl Table 1. Timing and rate (lb/acre) of oxamyl treatments evaluated in Treatment 1 In-furrow at Banded at crop 3 weeks after planting emergence crop emergence 6 weeks after crop emergence Non-treated , 44, 65, 86 1 lb 1 lb 1 lb 1 lb 44, 65, lb 1 lb 1 lb 0, 44, 65 1 lb 1 lb 1 lb 0(2X), 65, 86 2 lb 1 lb 1 lb 0(2X), 44(2X) 2 lb 2lb 1 Application dates in days after planting (DAP): 0 DAP indicates in-furrow application; 44 DAP occurred at crop emergence; remaining DAP dates occurred at three-week intervals thereafter; (2X) indicates a doubled rate of 2.0 lb a.i./acre. General Materials and Methods: This study was conducted in a commercial corn field near Rice, MN, which has a history of CRS. The area was previously cropped to field corn in 2008 and potato in Fertility During row marking, 40N- 50P- 160K- 25S- 1.5B-.75Zn 0.1B was applied as a dry band 2 below where the seed piece was planted. An additional 60 and 115 lbs nitrogen/acre was applied on 19 May and 10 June, respectively, as Pest management - Pink rot (Phytopthora erythroseptica) was controlled by applying 0.42 oz/ 1000 linear ft row Ridomil Gold EC (mefenoxam). Early and Late blight were controlled with mancozeb and chlorothalonil fungicides. Early season Colorado potato beetle and aphid control was achieved with an in-furrow application of 12 oz/acre of Belay (chlothianidin).
4 Treatment Materials and Methods Plot design, planting, and harvest A two-factor split-plot design was utilized and treatments were assigned in a randomized complete block design with four replications. Main plots were oxamyl treatment and were 4 potato rows wide and 55 feet long. The split plot was potato variety and was 1 potato row wide and 15 feet long. Certified potato seed of all varieties evaluated were hand cut into ounce pieces on 27 April, treated with Maxim MZ, and suberized for 9 days at 50 F and 95% relative humidity. Plots were planted on 6 May with a 2-row, assist-feed Harriston planter and harvested on 20 October using a single-row Grimme harvester. Oxamyl treatments The in-furrow application of oxamyl was applied in a 6-inch band at the bottom of the furrow using 7 gpa water at planting. The crop emergence application was applied on 9 June (44 days after planting, DAP) in 10gpa water using a backpack CO 2 sprayer (Figure 3). The three and six week post-emergence applications were applied on 30 June (65 DAP) and 21 July (86DAP), respectively, in 10 gpa water using a backpack CO 2 sprayer. CRS evaluations Following harvest, all potatoes were transported to the USDA Potato Worksite in East Grand Forks, MN, and tubers from individual plots were equally split into two samples. The first sample was evaluated immediately following harvest and the second sample will be evaluated after 4 months storage. Twenty-five randomly selected tubers from each plot were cut into ½ transverse sections (Figure 4) and the number of spots over 1/8 in diameter were counted. Incidence, damage, and severe damage were defined as tubers having more than one, three six, and more than six spots, respectively (USDA, 2008). Figure 3. Application of oxamyl in 10 gpa water at crop emergence Statistical analysis Analysis of variance was performed using PROC GLM in SAS v.9.3 and when significant, means were separated using least significant differences. Figure 4. Tubers cut into transverse sections to evaluate for Corky Ringspot symptoms Results: Effect of oxamyl treatment on crop emergence Analysis of variance indicated there was no interaction between oxamyl treatment and potato variety on crop emergence. As a result, the main effect is reported here. Crop emergence ranged from 91 96% of seed pieces planted and was not influenced by oxamyl treatmenty (Table 1). This indicates that neither 1 or 2 lb ai/a oxamyl applied in-furrow at planting reduced the number of plants emerged compared to treatments without oxamyl.
5 Effect of oxamyl treatment on incidence and severity of Corky Ringspot Analysis of variance indicated that the effect of oxamyl treatment on the incidence and severity of CRS damage was not dependent upon potato variety. As a result the main effects of oxamyl treatment across all varieties tested are reported (Table 2). Incidence: Corky ringspot disease was observed in 56% of tubers when not treated with oxamyl in While none of the oxamyl treatments eliminated CRS symptoms, they all significantly reduced the CRS incidence compared to the non-treated control. Initiating oxamyl treatment at emergence resulted in 33% incidence, and was further reduced to below 4% when treatment began at planting. There was no difference between the four treatments that included an in-furrow application of oxamyl. Damage: The percentage of tubers with damage as defined by the USDA was 42% when no oxamyl was applied. All oxamyl treatments significantly reduced damaged tubers compared to the non-treated control. When the oxamyl treatment began at crop emergence, the percentage of tubers scored with damage was 25%, and was further reduced below 3% when treatments began at planting. There was no difference between the four treatments that included an in-furrow application of oxamyl. Severe Damage: The percentage of tubers with severe damage as defined by the USDA was 33% when not treated. All oxamyl treatments significantly reduced severely damaged tubers compared to the nontreated control, but only those treatments with an in-furrow application resulted in commercially acceptable levels of CRS. Table 2. Effect of Oxamyl treatment on crop emergence, incidence, damage, and severe damage caused by Corky Ringspot Treatment 1 Emergence Incidence 2 Damage 3 Severe Damage 4 Non-treated , 44, 65, , 65, , 44, (2X), 65, (2X), 44(2X) LSD (α= 0.10) ns Application dates in days after planting (DAP): 0 DAP indicates in-furrow application; 44 DAP occurred at crop emergence; remaining DAP dates occurred at three-week intervals thereafter; (2X) indicates a doubled rate of 2.0 lb a.i./acre. 2 Percent tubers with 1 or more spots, 3 Percent tubers with 3 6 spots, 4 Percent tubers with 6 or more spots. 5 ns = values within this column are not significantly different. 6 Values in columns with a numerical LSD value are significantly different if the difference between the two values is equal-to or greater-than the LSD value. Conclusion: The results from this trial indicate that low-volume applications of oxamyl can effectively reduce the incidence and severity of CRS symptoms in Russet Burbank, Russet Norkotah, Umatilla Russet, Dakota Pearl, Red Norland, and Yukon Gold when evaluated at harvest. Initiating applications 44 days after planting at crop emergence appears to miss early season TRV infection, resulting in unacceptable levels of CRS. All oxamyl programs that included an in-furrow treatment resulted in commercially acceptable levels of CRS. Preliminary results from this trial indicate that if in-furrow and crop emergence treatments oxamyl rates are increased to 2 lb ai/a., subsequent foliar applications may be unnecessary. However, further work is required to confirm or reject this hypothesis.
Cultivar Specific Nitrogen Management Profiles For Irrigated Process Varieties Inkster, ND 2009
Cultivar Specific Nitrogen Management Profiles For Irrigated Process Varieties Inkster, ND 2009 Nick David Extension Potato Agronomist North Dakota State University/University of Minnesota Cultivar Specific
More informationPremier Russet Management Guide - Idaho
Premier Russet Management Guide - Idaho General Description Premier Russet is a product of the cooperative USDA/ARS, University of Idaho breeding program in Aberdeen, and was released jointly by the USDA/ARS
More information2014 Standard Seed Treatment (2700 Series)
2014 Standard Seed (2700 Series) Location: Inkster, ND Plot design: 2 rows X 30 ft. X 4 reps; RCBD Planting date: June 6, 2014 Row width: 36 inches Plant spacing: 14 inches Cultivar: Russet Burbank Fertilizer:
More informationSugar End Evaluation (1900 Series) 4 rows X 30 feet X 4 reps; RCBD All 4 rows were sprayed; foliar disease data was taken from the center 2 rows.
End Evaluation (1900 Series) Location: Plot design: Tappen, ND 4 rows X 30 feet X 4 reps; RCBD All 4 rows were sprayed; foliar disease data was taken from the center 2 rows. Planting date: May 14, 2008
More informationCONTENTS. Early Blight Fungicide Trials...2 o Early blight degree days o Early blight fungicide trial...4
CONTENTS Early Blight Fungicide Trials.......2 o Early blight degree days - 2012...3 o Early blight fungicide trial...4 Root Knot Nematode Degree Days..... 18 SLV Late Blight Forecasting Data - 2011......20
More informationUniversity of Idaho Pink Rot Fungicide Trial Powdery Scab Fungicide Trial
Trial ID: Pink Rot Parker Location: Parker, ID Pink Rot Fungicide Trial Powdery Scab Fungicide Trial Study Director: Syngenta Investigator: Dr. Jeff Miller General Trial Information Study Director: Syngenta,
More information2015 Evaluation of In-Furrow and Foliar Fungicides for Disease Control in Peanut, Jay, FL
201 Evaluation of In-Furrow and Foliar Fungicides for Disease Control in Peanut, Jay, FL John Atkins and Barry Brecke This report includes a summary of the 201 in-furrow and foliar fungicide programs for
More informationCONTENTS. Early Blight Fungicide Trials... 1 Early blight degree days Early blight fungicide trial... 3
CONTENTS Early Blight Fungicide Trials........... 1 Early blight degree days - 2013.......... 2 Early blight fungicide trial.... 3 Root Knot Nematode Degree Days..... 7 SLV Late Blight Forecasting - 2013......
More informationNitrogen Management Effects on Tuber Yield, Quality, and Acrylamide Content of Five Processing Cultivars
Nitrogen Management Effects on Tuber Yield, Quality, and Acrylamide Content of Five Processing Cultivars Carl Rosen, James Crants, Asunta Thompson, and Marty Glynn University of Minnesota, North Dakota
More information2014 Potato Research Report Potato Disease Control Project
2014 Potato Research Report Potato Disease Control Project Potatoes surrounded by a mix of flowering plant species (picture taken after potato vinekill). Andrew Houser and Robert Davidson (Advisory Role)
More informationUSE OF OCEANGROWN PRODUCTS TO INCREASE CROP YIELD AND ESSENTIAL NUTRIENT CONTENT. Dave Franzen, North Dakota State University, Fargo, ND
USE OF OCEANGROWN PRODUCTS TO INCREASE CROP YIELD AND ESSENTIAL NUTRIENT CONTENT Dave Franzen, North Dakota State University, Fargo, ND Introduction OceanGrown (OG) products (Toronto, Ontario, Canada)
More informationTitle: Potential Management of Powdery Scab and Mop Top Virus Using an Integration of Soil Fumigation and Genetic Resistance
Title: Potential Management of Powdery Scab and Mop Top Virus Using an Integration of Soil Fumigation and Genetic Resistance Principle Investigator: Neil C. Gudmestad, Department of Plant Pathology, North
More informationPEANUT SEEDLING DISEASES (Commercial Production) PEANUT NEMATODES (Commercial Production)
PEANUT SEEDLING DISEASES (Commercial Production) Disease Rate/cwt Seed Commercial Seed Treatments Rhizoctonia solani and Dynasty PD azoxystrobin + mefenoxam + fludioxonil 11 + 4 + 12 3-4 oz Maxim 4 FS
More informationINSECTICIDE TRIALS FOR ONION THRIPS (THRIPS TABACI) CONTROL 2002
INSECTICIDE TRIALS FOR ONION THRIPS (THRIPS TABACI) CONTROL 2002 Lynn Jensen Malheur County Extension Office Oregon State University Ontario, OR, 2002 Introduction Onion thrips are the major insect pest
More informationPeanut Disease Control Field Trials 2013
Peanut Disease Control Field Trials 2013 Departmental Series No. 18 Department of Entomology and Plant Pathology Alabama Agricultural Experiment Station William Batchelor, Director Auburn University Auburn,
More informationTina L. Brandt, Nora Olsen, Jeff Stark, Rich Novy, and Sanjay Gupta. Storage Management of. Classic Russet. Potatoes
Tina L. Brandt, Nora Olsen, Jeff Stark, Rich Novy, and Sanjay Gupta CIS 67 Storage Management of Potatoes Introduction is an early- to mid-season russet potato variety that produces a high proportion of
More informationVolume XIII, Number 7 July 19, Potato mop-top virus - An Emerging Problem in the Columbia Basin
Research & Extension for the Potato Industry of Idaho, Oregon, & Washington Andrew Jensen, Editor. ajensen@potatoes.com; 509-760-4859 www.nwpotatoresearch.com Volume XIII, Number 7 July 19, 2013 Potato
More informationPotato virus Y. Positive sense RNA virus Potyviridae. Transmitted by several aphid species in a non-persistent, non-circulative manner
Effects of Biotic Factors on Stored Potato Quality Hancock Agricultural Experiment Station Field Day Russell L. Groves Department of Entomology University of Wisconsin 1630 Linden Drive Madison, WI 53719
More informationVolume XII, Number 17 September 18, Silver Scurf and Black Dot Development on Fresh Marketed Russet Norkotah Tubers in Storage
Research & Extension for the Potato Industry of Idaho, Oregon, & Washington Andrew Jensen, Editor. ajensen@potatoes.com; 509-760-4859 www.nwpotatoresearch.com Volume XII, Number 17 September 18, 2012 Silver
More informationCrop Disease Management Row Crop Short Course March 1 st, 2018
Crop Disease Management ---------------------------------------- Row Crop Short Course March 1 st, 2018 Nicholas S. Dufault Extension Specialist Row Crops & Vegetables Plant Pathology Department/IFAS University
More informationEvaluation of advanced potato breeding clones for storage and processing performance.
Evaluation of advanced potato breeding clones for storage and processing performance. Martin Glynn USDA/ARS Potato Research Worksite Dr. Joe Sowokinos Department of Horticultural Science University of
More information2014 Black Dot Foliar Fungicides (200 Series)
2014 Black Dot Foliar Fungicides (200 Series) Location: Inkster, ND Plot design: 4 rows X 30 feet X 4 reps; RCBD All 4 rows were sprayed; foliar disease data was taken from the center 2 rows. Planting
More information2006- Foliar insecticide effects on soybean aphid and soybean yield. Summary Background Objective Site and application description
2006- Foliar insecticide effects on soybean aphid and soybean yield. Bruce Potter, Jeff Irlbeck, Jodie Getting University of Minnesota Southwest Research and Outreach Center Summary Insecticides were applied
More informationTina Brandt, Nora Olsen, Jeff Stark, Rich Novy, and Jonathan Whitworth. Storage Management of. Blazer Russet. Potatoes
Tina Brandt, Nora Olsen, Jeff Stark, Rich Novy, and Jonathan Whitworth CIS 1192 Storage Management of Blazer Russet Potatoes Introduction Blazer Russet is an early maturing, high-yielding potato variety
More informationFoliar fungicide effects on soybean disease suppression, senescence and yield I.
Foliar fungicide effects on soybean disease suppression, senescence and yield I. Bruce Potter, Jeff Irlbeck, Jodie Getting University of Minnesota Southwest Research and Outreach Center Summary Foliar
More information2013 Black Dot Foliar Fungicides (200 Series)
2013 Black Dot Foliar Fungicides (200 Series) Location: Plot design: Inkster, ND 4 rows X 30 feet X 4 reps; RCBD All 4 rows were sprayed; foliar disease data was taken from the center 2 rows. Planting
More informationNo. 2 April 3, Potato fungicide updates for Spring 2015: Updates:
wi In This Issue Fungicide registration updates for potato Hop updates Vegetable Crop Update A newsletter for commercial potato and vegetable growers prepared by the University of Wisconsin-Madison vegetable
More informationEVALUATION OF FUNGICIDES FOR CONTROL OF BLACK SHANK IN TOBACCO
EVALUATION OF FUNGICIDES FOR CONTROL OF BLACK SHANK IN TOBACCO S. Hollifield, P. Bertrand, J.M. Moore, D. Shew, J. Shealy, & M. Dowdy BLACK SHANK OF TOBACCO Phytophthora nicotianae PROBLEM: Black Shank
More informationEggplant, Pepper, and Tomato. Early Blight. Identification and Life Cycle. Plant Response and Damage
Eggplant, Pepper, and Tomato Early Blight Howard F. Schwartz and David H. Gent Identification and Life Cycle Early blight is a disease of tomato, pepper and eggplant caused by the fungus Alternaria solani,
More informationIR-4 Ornamental Horticulture Program Research Report Cover Sheet
20151021b.pdf IR4 Ornamental Horticulture Program Research Report over Sheet Researcher(s) Gary hastagner Trial: 2015 WA Affiliation: Washington State University Pullayup WA PhoneNumber: (253) 4454528
More informationManagement of Fusarium and other Soil Borne Diseases in Tomatoes and Vegetables
Management of Fusarium and other Soil Borne Diseases in Tomatoes and Vegetables Scott Stoddard, Farm Advisor, UCCE Merced County Pest Management Update Class, Nov. 3, 2015 Soil diseases Phytophthora Pythium
More informationOnion Weed Control Trial, 2004 Objective: Materials and Methods: Results:
Onion Weed Control Trial, 2004 Carrie Schumacher, Paul Mayland and Harlene Hatterman-Valenti North Dakota State University, Fargo, ND Paul Hendrickson Carrington Research Extension Center, Carrington,
More informationFungicide resistance in populations of the pink rot pathogen in Canada
Fungicide resistance in populations of the pink rot pathogen in Canada Rick Peters Agriculture and Agri-Food Canada Charlottetown Research and Development Centre 2016 Manitoba Potato Production Days Canad
More information2011 Lygus Bug Management Trial in Blackeyes Kearney Research and Extension Center, Parlier, CA C.A. Frate 1, S.C. Mueller and P.B.
2011 Bug Management Trial in Blackeyes Kearney Research and Extension Center, Parlier, CA C.A. Frate 1, S.C. Mueller and P.B. Goodell Introduction bugs are the primary insect pest of blackeye cowpeas (Vigna
More informationPage 1. Trade Name (rate/a) Active Ingredient(s) PHI REI FRAC # Comments. triphenyltin hydroxide
Page 1 In-furrow and seed treatment registrations are omitted. This is not a comprehensive list. Most fungicides listed are for use in conventional production systems. List compiled 22 May 2017. Amanda
More informationEPIDEMIOLOGY AND CONTROL OF PINK ROT OF POTATOES
EPIDEMIOLOGY AND CONTROL OF PINK ROT OF POTATOES Authors E. O Sullivan and L.J. Dowley Crops Research Centre, Oak Park, Carlow ISBN 1 901138 73 9 September 1998 The Science of Farming and Food EUROPEAN
More information2012 Evaluation of Insecticides for Lygus Bug Control in Blackeye Cowpeas
2012 Evaluation of Insecticides for Lygus Bug Control in Blackeye Cowpeas C.A. Frate 1, S.C Mueller 2 Walter Martinez, Kerista Hernandez, Yvonne Lopez, and Katherine Wilson Lygus bugs (Lygus spp.) are
More informationMethods and Materials:
The Effect of Spacing on New Round-up Ready Sugar Beet Varieties in the Imperial Valley 2015 2016 and 2016-2017 Growing Seasons Israel Santiago, Mark Bloomquist, and John Lamb Justification: Agricultural
More informationTina Brandt, Nora Olsen, Jeff Stark, Rich Novy, Jonathan Whitworth, and Sanjay Gupta. Storage Management of. Alpine Russet.
Tina Brandt, Nora Olsen, Jeff Stark, Rich Novy, Jonathan Whitworth, and Sanjay Gupta CIS 8 Storage Management of Potatoes Introduction is a high-yielding, late-maturing cultivar with long, lightly russeted
More informationControl of Codling Moth and Other Pear Arthropods with Novaluron Evaluation of Novaluron for Phytotoxicity to Pear and Apple 2004
Control of Codling Moth and Other Pear Arthropods with Novaluron Evaluation of Novaluron for Phytotoxicity to Pear and Apple 2004 Diane Alston, Thor Lindstrom, and Shawn Steffan, Utah State University
More informationTIMELY INFORMATION Agriculture & Natural Resources
PLANT PATHOLOGY SERIES TIMELY INFORMATION Agriculture & Natural Resources Quash Fungicide Now Available for Foliar and Soil Control on Peanut A. K. Hagan Professor and Extension Plant Pathologist Newly
More informationNo. 8 May 20, Calendar of Events. In This Issue
wi In This Issue Vegetable Crop Update A newsletter for commercial potato and vegetable growers prepared by the University of Wisconsin-Madison vegetable research and extension specialists No. 8 May 20,
More informationPotato, Tobacco, and Turf Trial Findings
Potato, Tobacco, and Turf Trial Findings Potatoes Potato Trials Tindall and Westerman (1991- Idaho) 3 year study Greater yields vs. MOP A Chloride- nitrate antagonism McDole (1978) SOP resulted in higher
More informationEvaluation of Sclerotia Germination Stimulants for White Rot Control
Evaluation of Sclerotia Germination Stimulants for White Rot Control California Garlic and Onion Symposium, 2017 Jeremiah Dung Oregon State University Central Oregon Agricultural Research Center Madras,
More informationIn mid-october, all plots were again soil sampled to determine residual nutrients.
Spent Rate Effects on beet and Quality (2004 and 2007) Wheat and Soybean (2005 and 2006) Larry J. Smith, Head; Todd E. Cymbaluk and Jeffrey D. Nielsen, Assistant Scientists; Northwest Research and Outreach
More informationWhat s new with micronutrients in our part of the world?
2006 Integrated Crop Management Conference - Iowa State University 181 What s new with micronutrients in our part of the world? George Rehm, Professor, Soil, Water and Climate, University of Minnesota
More informationManagement of Root Diseases in Sugarbeet
Management of Root Diseases in Sugarbeet Ashok K. Chanda Assistant professor/ Extension Sugarbeet Pathologist Northwest Research and Outreach Center, Crookston Dept. of Plant Pathology, University of Minnesota
More informationEVALUATION OF INSECTICIDES AND INSECTICIDE USE PATTERNS FOR MANAGEMENT OF THRIPS AND IRIS YELLOW SPOT VIRUS
EVALUATION OF INSECTICIDES AND INSECTICIDE USE PATTERNS FOR MANAGEMENT OF THRIPS AND IRIS YELLOW SPOT VIRUS Stuart Reitz, Malheur County Extension, Ontario, OR, 2015 Clint Shock, Erik Feibert, Alicia Rivera,
More informationVARIETY DEVELOPMENT IN TULELAKE, CA
Page 0 dgfhdfghdgfh 2016 POTATO Three variety trials were grown at the Intermountain Research and Extension Center during 2016. Trials were categorized by their market type and included russet, specialty
More informationEVALUATION OF INSECTICIDES AND INSECTICIDE USE PATTERNS FOR MANAGEMENT OF THRIPS AND IRIS YELLOW SPOT VIRUS
EVALUATION OF INSECTICIDES AND INSECTICIDE USE PATTERNS FOR MANAGEMENT OF THRIPS AND IRIS YELLOW SPOT VIRUS Stuart Reitz, Malheur County Extension, Ontario, OR Clint Shock, Erik Feibert, Lamont Saunders,
More informationDate: Jan. 30, Industry Cooperators. Tim Brenneman. Field Trial Results
Date: Jan. 30, 2009 Memo to: From: Subject: Industry Cooperators Tim Brenneman Field Trial Results Attached are the results of our 2009 field trials on peanuts and pecans. This year was interesting in
More information2008 PMR REPORT #ESOYSMI4 SECTION E: CEREAL, FORAGE CROPS, and OILSEEDS Insect Pests
2008 PMR REPORT #ESOYSMI4 SECTION E: CEREAL, FORAGE CROPS, and OILSEEDS Insect Pests CROP: Soybean, Glycine max (L.) Merr., Hyland Seed cvs. HS24R45 (3200 CHU) ( st planting) and RR Razor (2 nd planting)
More informationRate/a of commercial product. Days to
238 TOMATO Disease control in tomato (cont.) Disease Septoria leaf blight, early blight, and late blight (cont.) Soil rot Walnut wilt Active ingredient chlorothalonil.3.8 lb Bravo Ultrex 82.WDG, Equus
More informationImpact of insecticides on wireworms in sunflower
Impact of insecticides on wireworms in sunflower Adam Varenhorst, SDSU Brady Hauswedell, SDSU Jan Knodel, NDSU J. P. Michaud, KSU What early season pests are problems? Wireworms Frank Peairs Plant stand
More information2011 Early Season Foliar Fungicide Timing Trial on Corn
2011 Early Season Foliar Fungicide Timing Trial on Corn South Central Ag L Clay Center, NE Tamra Jackson Extension Plant Pathologist University of Nebraska - Lincoln 2011 Diseases Gray leaf spot was the
More information2014 FUNGICIDE GUIDE FOR BURLEY AND DARK TOBACCO
COOPERATIVE EXTENSION SERVICE PPFS-AG-T-08 Plant Pathology Fact Sheet 2014 FUNGICIDE GUIDE FOR BURLEY AND DARK TOBACCO by Kenny Seebold Extension Plant Pathologist CHEMICALS LABELED FOR DISEASE MANAGEMENT
More information2017 Michigan Regional Trial
2017 Michigan Regional Trial 2017 Potatoes USA SNAC International Trial Yield Trial Report Local Trial Coordinator: Cooperating Grower: Chris Long, Potato Specialist Tim, Todd and Chase Young Anna Busch,
More informationKimberly Potato Storage Advisory Committee Meeting Minutes Kimberly, Idaho, November 20, 2008
Kimberly Potato Storage Advisory Committee Meeting Minutes Kimberly, Idaho, November 20, 2008 The Kimberly Potato Storage Advisory Committee meeting was held in Kimberly, ID from 10 am to 2:30 pm on November
More informationKnockdown and Residual Control of Bagrada Bug With Foliar Insecticides in Broccoli: 2013 Efficacy Report
Knockdown and Residual Control of Bagrada Bug With Foliar Insecticides in Broccoli: 2013 Efficacy Report John C. Palumbo, Yuma Agricultural Center Preventing adult Bagrada bugs, Bagrada hilaris, from feeding
More informationAphid Management on Head Lettuce Using Imidacloprid and Foliar Insecticides
Aphid Management on Head Lettuce Using Imidacloprid and Foliar Insecticides John C. Palumbo, Yuma Agricultural Center In the production of desert lettuce, growers and PCAs have a several options for aphid
More informationCoRoN Enhancement of Pumpkin Fungicides: Effects on Foliar Diseases. Craig H. Canaday and Jim E. Wyatt, University of Tennessee
CoRoN Enhancement of Pumpkin Fungicides: Effects on Foliar Diseases Craig H. Canaday and Jim E. Wyatt, University of Tennessee Kent Cushman, Mississippi State University Interpretative Summary The effect
More informationEfficacy of Selected Acaricides on Spider Mites in Corn 2011
1 Efficacy of Selected Acaricides on Spider in Corn 2011 Larry Godfrey and Treanna Pierce Dept. of Entomology; Univ. of California-Davis Objectives: To compare the efficacy of selected registered and experimental
More informationFeasibility of Reducing Slug Damage in Cabbage: Part II
FINAL REPORT Feasibility of Reducing Slug Damage in Cabbage: Part II Christy Hoepting and Rebekah Edgell, Cornell Cooperative Extension Regional Vegetable Program COOPERATORS Chris Martin, Martin Farms,
More informationTable 1 Disease Ratings* May 22 May 30 Tst Treatment and rate/a Inc Sev Fld Sev Inc Sev Fld Sev Bu/A** LSD P=
MANAGEMENT OF FUSARIUM HEAD BLIGHT IN WHEAT USING SELECTED BIOLOGICAL CONTROL AGENTS AND FOLIAR FUNGICIDES, 2001 D.E. Hershman 1, P.R. Bachi 1, D.M. TeKrony 2 and D.A. VanSanford 2 Department of Plant
More information2012 WI-1 Columbia ±0.39) 0.05 ( ) WI-40 Marinette ±0.43) 0.55 ( ) (
2013 Langlade County Agricultural Experiment Station Field Day; Potato and Vegetable Insect Research Russell L. Groves, Stephanie Plaster, Kevin Gallenberg, Scott A. Chapman, Anders S. Huseth, Ken Frost,
More informationResearch Abstract for the CALIFORNIA LEAFY GREENS RESEARCH PROGRAM April 1, 2012 March 31, 2013
Research Abstract for the CALIFORNIA LEAFY GREENS RESEARCH PROGRAM April 1, 2012 March 31, 2013 Project Title: Management of Thrips on Lettuce Project Investigator: Eric T. Natwick University of California
More informationEvaluation and comparison of biofungicides and fungicides for the control of post harvest potato tuber diseases ( ).
Evaluation and comparison of biofungicides and fungicides for the control of post harvest potato tuber diseases (2008-2009). E. Gachango, W. W. Kirk, R. Schafer and P. Tumbalam. Department of Plant Pathology,
More information2008 APPLIED PEANUT PLANT PATHOLOGY RESEARCH RESULTS
2008 APPLIED PEANUT PLANT PATHOLOGY RESEARCH RESULTS JASON E. WOODWARD EXTENSION PLANT PATHOLOGIST TEXAS AGRILIFE EXTENSION SERVICE 1102 E. FM 1294 LUBBOCK, TX 79403 806 746 4053 JEWOODWARD@AG.TAMU.EDU
More informationAgronomic In-Service Training
Agronomic In-Service Training ---------------------------------------- NFREC, Quincy, FL January 16, 2018 Nicholas S. Dufault Extension Specialist Row Crops & Vegetables Plant Pathology Department/IFAS
More informationStoller s Options and Timings for Increasing Tuber Numbers in Potatoes
Stoller s Options and Timings for Increasing Tuber Numbers in Potatoes PRODUCTS In Furrow at Planting Pre Tuber Tuber Initiation Late Tuber Early Tuber Bulking Mid to Late Tuber Bulking Heat Stress and
More informationTHRIPS EFFICACY TRIALS IN SOUTH GEORGIA. J. D. Griffin, J.R. Ruberson, R.J. Ottens and P.M. Roberts Dept. of Entomology, Univ. of Georgia Tifton GA
THRIPS EFFICACY TRIALS IN SOUTH GEORGIA J. D. Griffin, J.R. Ruberson, R.J. Ottens and P.M. Roberts Dept. of Entomology, Univ. of Georgia Tifton GA Abstract A set of studies was conducted in Tifton, GA,
More informationDry Bean Fertility Dave Franzen NDSU Soil Science Specialist
Dry Bean Fertility Dave Franzen NDSU Soil Science Specialist Dry bean is responsive to fertilizer when soil levels are inadequate to support yield levels possible with existing soil moisture and growing
More informationLime Fertilizer Interactions Affecting Vegetable Crop Production' Delbert D. Hemphill, Jr., and T. L. ABSTRACT
109 Lime Fertilizer Interactions Affecting Vegetable Crop Production' Delbert D. Hemphill, Jr., and T. L. Jackson2 ABSTRACT Experiments at the North Willamette Experiment Station have evaluated response
More informationMidsouth Entomologist 2: ISSN:
: 93 99 ISSN: 1936-6019 www.midsouthentomologist.org.msstate.edu Report Evaluation of Insecticides for Management of Sweetpotato Insect Pests J. T. Reed 1, D. Bao 1, C. S. Jackson 1, and D. Cook 2 1 Dept.
More informationManage Vegetable Crops for a high-performance season
Manage Vegetable Crops for a high-performance season Agenda Introduction to Wolf Trax Innovative Nutrients Importance of Micronutrients in Crop Production Three ideas to make the most of your fertilizer
More informationManagement Strategies for the Cotton Aphid. Jeff Gore USDA-ARS, Stoneville
Management Strategies for the Cotton Aphid Jeff Gore USDA-ARS, Stoneville 2004 2005 100 90 80 70 60 50 40 30 20 10 0 Cotton Aphid Control US Average Infested Treated 1992 1993 1994 1995 1996 1997 1998
More informationUsing silicon, Stimplex and plant resistance in pumpkin production systems to reduce plant disease loss
Using silicon, Stimplex and plant resistance in pumpkin production systems to reduce plant disease loss Gerald Brust, IPM Vegetable Specialist University of Maryland 2005 Largo Rd Upper Marlboro, MD 20774
More information2018 FUNGICIDE GUIDE FOR BURLEY AND DARK TOBACCO
College of Agriculture, Food and Environment Cooperative Extension Service Plant Pathology Fact Sheet 2018 FUNGICIDE GUIDE FOR BURLEY AND DARK TOBACCO By Will Barlow 1, Emily Pfeufer 1, and Bob Pearce
More informationSTRATEGIES FOR CONTROLLING ONION THRIPS (Thrips tabaci) IN SWEET SPANISH ONIONS
STRATEGIES FOR CONTROLLING ONION THRIPS (Thrips tabaci) IN SWEET SPANISH ONIONS Lynn Jensen Malheur County Extension Office Oregon State University Ontario, Oregon, 1995 Many of the products used in this
More informationDesigning Research and Demonstration Tests for Farmers Fields
Designing Research and Demonstration Tests for Farmers Fields Prepared by Richard F. Davis, Extension Nematologist; Glen H. Harris, Extension Agronomist; Phillip M. Roberts, Extension Entomologist; and
More informationPotato Varietal Tests
Potato Varietal Tests Two nurseries were cftab7iched during 1967, one at the Redmond location and the other at the Madras location of the Central Oregon Experiment Station. The same twenty-four varieties
More informationSOYBEAN DISEASE CONTROL John D. Mueller, Extension Soybean Pathologist
SOYBEAN DISEASE CONTROL John D. Mueller, Extension Soybean Pathologist Soybeans can be affected by diseases throughout the growing season. In general seedling diseases are only a problem in fields planted
More informationSource Rate/Acre Ammonium Sulphate and 100 lbs. Ammonium Nitrate P Treblesuperphosphate. Gypsum 1000
32. WEIGAND LOCATION EXPERIMENTS The Powell Butte District of Crook County and the irrigated portion of Deschutes County have experienced a decline in alfalfa and potato yields. The reasons for the declining
More informationPotato Tuber Yield, Mineral Concentration, and Quality after Calcium Fertilization
Potato Tuber Yield, Mineral Concentration, and Quality after Calcium Fertilization George H. Clough Oregon State University, Hermiston Agricultural Research and Extension Center, P.O. Box 105, Hermiston,
More informationBiology and Management of Potato Psyllid in Pacific Northwest Potatoes.
Biology and Management of Potato Psyllid in Pacific Northwest Potatoes. Alan Schreiber, Agriculture Development Group, Inc., Andy Jensen, Regional Research Director, for the Idaho, Oregon and Washington
More informationVEGETABLE DISEASES (Commercial Production)
VEGETABLE DISEASES (Commercial Production) Jackie Lee and Travis Faske ASPARAGUS Rust Rally WSP myclobutanil 5 oz Apply at first evidence of disease. Bravo WeatherStik 2 - pt Follow label instructions.
More informationManaging Tobacco Nematodes Using Isothiocyanate Products
Managing Tobacco Nematodes Using Isothiocyanate Products Chuck Johnson Virginia Tech So. Piedmont AREC October 10, 2016 Materials & Methods Small plot field experiments, 1998-2006, 2009-2016 Virginia Tech
More informationREPORT TO THE AGRICULTURAL RESEARCH FOUNDATION FOR THE OREGON PROCESSED VEGETABLE COMMISSION December 2010 Project Title: Management of Fusarium
REPORT TO THE AGRICULTURAL RESEARCH FOUNDATION FOR THE OREGON PROCESSED VEGETABLE COMMISSION December 21 Project Title: Management of Fusarium diseases of sweet corn in the PNW: microflora influence on
More information2016 FUNGICIDE GUIDE FOR BURLEY AND DARK TOBACCO
PPFS-AG-T-08 PLANT PATHOLOGY FACT SHEET 2016 FUNGICIDE GUIDE FOR BURLEY AND DARK TOBACCO By Emily Pfeufer 1 and Bob Pearce 2 1 Extension Plant Pathologist Department of Plant Pathology 2 Extension Tobacco
More informationBalance GT/Balance Bean/LL Systems in Soybeans at Rochester, MN Breitenbach, Fritz R., Lisa M. Behnken, Annette Kyllo and Matthew Bauer
Balance GT/Balance Bean/LL Systems in Soybeans at Rochester, MN Breitenbach, Fritz R., Lisa M. Behnken, Annette Kyllo and Matthew Bauer The objective of this trial was to evaluate Balance GT/Balance Bean/LL
More informationInstitute of Agric ulture and Natural Resourc es Department of Plant Pathology
2014 Evaluation of SCN Resistant Soybean Varieties in Nebraska Loren J. Giesler, Extension Plant Pathologist Nicholas Arneson, Extension Technologist John Wilson, Extension Educator Burt County Soybean
More informationInsecticides Labeled for Control of Bean Leaf Beetle, Mexican Bean Beetle, and Green Cloverworm. Amount product per acre
Insect Management in Soybeans 2016 Joanne Whalen Extension IPM Specialist and Bill Cissel, Extension IPM Agent University of Delaware ( adapted from VA Pest Management Guide, section written by D Ames
More information2007 Powdery Mildew of Cantaloupe Fungicide Trial
2007 Powdery Mildew of Cantaloupe Fungicide Trial Michael Matheron and Martin Porchas, University of Arizona, Yuma Agricultural Center, Yuma, AZ 85364 This study was conducted at The University of Arizona,
More informationInstitute of Agric ulture and Natural Resourc es Department of Plant Pathology
2015 Evaluation of SCN Resistant Soybean Varieties in Nebraska Loren J. Giesler, Extension Plant Pathologist Nicholas Arneson, Extension Technologist Kyle Broderick, Extension Technologist John Wilson,
More informationFunding for this research was provided by the Nebraska Soybean Board.
2012 Evaluation of SCN Resistant Soybean Varieties in Nebraska Loren J. Giesler, Extension Plant Pathologist Haley Oser, Extension Technologist John Wilson, Extension Educator Burt Co. Michael Carson,
More informationPotato Seed Treatment Disease Control 2 Chemical Application Dosage 1 Fungi 3 Bacteria 4
Seed Treatment Disease Control 2 Application Dosage 1 Fungi 3 Bacteria 4 Remarks Azoxystrobin (11) Dynasty, 9.6% Water-based slurry 0.10-3.75 fl oz/cwt For suppression of black scurf and stem canker and
More informationIn-depth studies initiated: Results:
Exploring the Relationship Between Nitrogen, Plant Spacing and Bacterial Diseases of Onion in New York: Reduced Nitrogen and Closer Spacing Could Result in Less Rot Christy Hoepting, Cornell Cooperative
More informationNitrogen, Potassium and Calcium in Potatoes. Barry Bull, Hydro Agri Specialities September 2003
Nitrogen, Potassium and Calcium in Potatoes Barry Bull, Hydro Agri Specialities September 2003 Tuber Size Tuber Nu mber Tuber Quality Skin Finish Storage Quality N P K Ca Mg S Mn B Zn Role of nutrients
More informationPeanut Disease Control Field Trials 2015
Peanut Disease Control Field Trials 2015 Departmental Series No. 20 Alabama Agricultural Experiment Station William Batchelor, Director Auburn University Auburn, AL In cooperation with the Alabama Cooperative
More informationTURF DISEASES (Commercial)
TURF DISEASES (Commercial) Terry Spurlock Brown Patch 0.2 - Apply in 2-4 gals water/1,000 sq ft every 14-28 days as a preventative during warm, humid weather favorable for the disease. Use the higher rate
More information